Pyrotechnic device.



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EUWARD H. WAGNER, OF NEW YORK, N. Y.

PYROTECHNIC DEVICE.

Specification of Letters Patent.

Patented Feb. 5, 1907.

Application led October ll, 1906. Serial No 338.363.

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Be it known that l, EDWARD H. WTAGNER, a subject of the King of Denmark,and a resident of the city of New York, in the county of New York andState of New York, United States of America, have invented certain newand useful Improvements in Pyrotechnic Devices, of which the followingis a specification.

My invention relates to pyrotechnic devices g and its object is toprovide an article of manufacture which is capable of producing noveland attractive pyrotechnic results.

l will describe my invention in the following specification and pointout the novel features thereof in claims.

The drawing is perspective view of a structure embodying my invention.

T his article belongs to the class of fireworks in which pyrotealmicmaterial is made up in long strips inclosed in a cover of paper or othersuitable material.

in the drawing the strip of pyrotechnic compound. or material isdesignated by the numeral l() and the cover by .11. `One end of thisstrip I fold back and forth in a zigzag manner, as is shown at 12, toforni what is known in the art as a grasshopper. ln the center of thisgrasshopper a hole 1 3 is left for the insertion of a pin or nail. Ifdesired, this grasshopper part of my device may be tied together by astring or wire 14, which is preferably somewhat embedded in the strips.Around this zigzag or grasshopper portion l wind the strip to form aflat spiral 1.5. Sonietimes l make this spiral portion of a pyroteahniccompound or material composed of different ingredients than that ofwhich the zigzag portion is formed and connect the two parts together,as shown at 16. The outer end of this strip is shown provided with a rfuse 17. Then this device is used, the outer end, which is provided withthe fuse, is lighted. posed is arranged to burn freely with spectacul aror explosive effects. The surrounding cover ll guides the fire which isemitted from the strip, so that it goes in practically one direction,and the reaction of this operation will cause the device itself to bemoved. The result is that while the spiral portion is burning the devicehas a tendency to rotate.

The material of which the strip is com- 1 i l I As soon as the firereaches the zigzag portion, however, the device will have a tendency tojump back and forth.

This article is arranged to be used in the manner of an ordinarypin-wheel by nailing it up with a pin or nail inserted through the hole13. When it is thus held in place, its effectiveness is increased, asthe rotating alone caused by the spiral part burning will continue untilthe grasshopper portion is in full operation, when the repeated changeof direction of the burning parts will cause the device to have aquickly alternating effect. The string or wire which is tied around thezigzag portion has a choking effect upon the operation of thegrasshopper part of this article, so that it causes successiveexplosions and consequent jumps in the operation To enhance the effect,l. sometimes make the spiral or pin-wheel portion of one material andthe zigzag or grasshopper portion of another material, so that theeffect is more varied.

The outer or spiral portion maybe arranged to produce colored-fireeffects, and the inner or zigzag portion may be arranged to producesimilar effects ina different color, or one or the other of theseportions may have explosive material combined with it to produce reportseither alone or in combination with the spectacular effects.

`What l claim isl. A pyrotechnic device comprising an inclosed strip ofpyrotechnic compound, a portion of said strip being folded back andforth in a zigzag form, another portion of saidstrip being wound aboutthe zigzag portion in the form of a flat spiral.

2. A pyrotechnic device comprising an inclosed strip of pyrotechniccompound, a portion of said strip being folded back and forth in azigzag form, the central portion of said zigzag portion being so formedas to leave an opening between its middle folds, another portion of saidstrip being wound about the zigzag portion in the form of a flat spiral.

3. A pyroteclmic device comprising an inclosed strip of pyrotechniccompound, a portion of said strip being folded back and forth in azigzag form, the central portion of said zigzag portion being so formedas to leave an opening between its middle folds, string or wire Woundabout said zigzag portion, another portion of said strip being Woundabout the zigzag portion in the form of a fiat spiral.

4. A pyroteohnio device comprising a strip of inclosved pyroteohniocompound, said strip being folded in a zigzag form, a second strip ofinolosed pyroteohnio compound loi' dierent ingredients than the rststrip, said seoond strip being connected to said irst strip and Woundabout the zigzag portion in the xo form of a Hat spiral.

In testimony whereof 1 have signed my name to this specification in thepresence of two subscribing Witnesses.

EDWARD H. WAGNER.

Witnesses:

ELLA TUCH, ERNEST W. MARSHALL.

